public void KeyOn(byte note, byte velo, TownsAudio_WaveTable w)
{
SetupLoop(w.loopStart, w.loopLen);
SetNote(note, w, _reserved);
SetVelo(velo);
if (_reserved)
{
_activeEffect = true;
}
else
{
_keyPressed = _activeKey = true;
}
_activeOutput = true;
}
void SetNote(byte note, TownsAudio_WaveTable w, bool stepLimit)
{
_note = note;
sbyte diff = (sbyte)(_note - w.baseNote);
ushort r = (ushort)(w.rate + w.rateOffs);
ushort bl = 0;
uint s = 0;
if (diff < 0)
{
diff *= -1;
bl = (ushort)(diff % 12);
diff /= 12;
s = (uint)(r >> diff);
if (bl != 0)
{
s = (s * _pcmPhase2[bl]) >> 16;
}
}
else if (diff > 0)
{
bl = (ushort)(diff % 12);
diff /= 12;
s = (uint)(r << diff);
if (bl != 0)
{
s += ((s * _pcmPhase1[bl]) >> 16);
}
}
else
{
s = r;
}
_stepNote = (ushort)(s & 0xffff);
_step = (ushort)((s * _stepPitch) >> 14);
if (stepLimit && _step > 2048)
{
_step = 2048;
}
}
public int InitInstrument(ref byte note, TownsAudio_WaveTable[] tables, int numTables, out TownsAudio_WaveTable table)
{
int i = 0;
table = null;
for (; i < 8; i++)
{
if (note <= _curInstrument[16 + 2 * i])
break;
}
if (i == 8)
return 8;
var d = (i << 3) + 64;
_envTotalLevel = _curInstrument[d];
_envAttackRate = _curInstrument[d + 1];
_envDecayRate = _curInstrument[d + 2];
_envSustainLevel = _curInstrument[d + 3];
_envSustainRate = _curInstrument[d + 4];
_envReleaseRate = _curInstrument[d + 5];
_envStep = 0;
note += _curInstrument[d + 6];
int id = _curInstrument.ToInt32(i * 4 + 32);
for (i = 0; i < numTables; i++)
{
if (id == tables[i].id)
break;
}
if (i == numTables)
return 9;
table = tables[i];
return 0;
}
public int InitInstrument(ref byte note, TownsAudio_WaveTable[] tables, int numTables, out TownsAudio_WaveTable table)
{
int i = 0;
table = null;
for (; i < 8; i++)
{
if (note <= _curInstrument[16 + 2 * i])
{
break;
}
}
if (i == 8)
{
return(8);
}
var d = (i << 3) + 64;
_envTotalLevel = _curInstrument[d];
_envAttackRate = _curInstrument[d + 1];
_envDecayRate = _curInstrument[d + 2];
_envSustainLevel = _curInstrument[d + 3];
_envSustainRate = _curInstrument[d + 4];
_envReleaseRate = _curInstrument[d + 5];
_envStep = 0;
note += _curInstrument[d + 6];
int id = _curInstrument.ToInt32(i * 4 + 32);
for (i = 0; i < numTables; i++)
{
if (id == tables[i].id)
{
break;
}
}
if (i == numTables)
{
return(9);
}
table = tables[i];
return(0);
}
public void LoadData(TownsAudio_WaveTable w)
{
_data = w.data;
_dataEnd = w.size;
}
public void LoadData(TownsAudio_WaveTable w)
{
_data = w.data;
_dataEnd = w.size;
}
void SetNote(byte note, TownsAudio_WaveTable w, bool stepLimit)
{
_note = note;
sbyte diff = (sbyte)(_note - w.baseNote);
ushort r = (ushort)(w.rate + w.rateOffs);
ushort bl = 0;
uint s = 0;
if (diff < 0)
{
diff *= -1;
bl = (ushort)(diff % 12);
diff /= 12;
s = (uint)(r >> diff);
if (bl != 0)
s = (s * _pcmPhase2[bl]) >> 16;
}
else if (diff > 0)
{
bl = (ushort)(diff % 12);
diff /= 12;
s = (uint)(r << diff);
if (bl != 0)
s += ((s * _pcmPhase1[bl]) >> 16);
}
else
{
s = r;
}
_stepNote = (ushort)(s & 0xffff);
_step = (ushort)((s * _stepPitch) >> 14);
if (stepLimit && _step > 2048)
_step = 2048;
}
public void KeyOn(byte note, byte velo, TownsAudio_WaveTable w)
{
SetupLoop(w.loopStart, w.loopLen);
SetNote(note, w, _reserved);
SetVelo(velo);
if (_reserved)
_activeEffect = true;
else
_keyPressed = _activeKey = true;
_activeOutput = true;
}
